A method in a wireless communication transmitter including a baseband processor (310) that configures the transmitter for a particular signal configuration, and a headroom controller (350) for adjusting transmitter headroom based on the particular signal configuration. In one embodiment, the headroom is controlled based on a power metric, for example, a 3rd order polynomial or a peak to average ratio (PAR) metric, that is a function of the signal configuration. In another embodiment, the headroom is adjusted using information in a look up table.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A method in a wireless communication transmitter, the method comprising: determining transmitter headroom based on a particular signal configuration using a look up table; configuring the wireless communication transmitter for the particular signal configuration after determining the transmitter headroom; adjusting transmitter headroom for the particular signal configuration based on the transmitter headroom determined using the look up table.
2. The method of claim 1 , determining transmitter headroom based on the particular signal configuration and based on signal power considerations using the look up table.
3. The method of claim 1 , adjusting at least one of wireless communication device transmitter supply voltage, bias and load based on the particular signal configuration.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
September 30, 2004
August 27, 2013
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